Headlight and the like



June 23, 1925. 1,543,617

F. G. PIPER mswmen'r AND THE LIKE Filed April 2. 1924 F 1g 1 j 22 19 1'1s 17 9 7 8 11 I 167/ k 1% I *LC AX 16 11 Patented June 23, 1925 UNITEDSTATES FREDERICK GEORGE PIPER, OF WINCHESTER, ENGLAND.

HEADLIGHT AND THE LIKE.

Application filed April 2, 1924. Serial No. 703,806.

To all whom it may concern- Be it known that I, FRnnnr-ucn G-nononPIPER, a subject of the King of Great Britain, residing at Winchester,in the county of Hants, England, have invented certain new and usefulImprovements in Headlights and the like, of which the following is aspecification.

The invention relates to anti-dazzle headlights for motor cars and likelamps provided with axially movable lamps adapted to be shiftedrelatively to the foci of the reflectors by means of wires operated fromthe dash board or other position remote from the lamp by a push rod.lVith such apparatus as hitherto constructed considerable difliculty isencountered in accurately adjusting the wires initially and also inreadjusting them after they have been in use for some time. There isalso difficulty in inserting and securing the wires in ends of thesliding lamp holders.

According to the invention the push rod is of such form that the wiremay be passed through it to the rear Where it is accessible so that itcan be adjusted either as regards length or tautness initially or at anyother time. \Vhen two or more wires are used it is preferred to providea separate push rod for each, so as to permit of independent adjustmentf each wire, means being provided, when desired, by which the push rodsmay be operated simultaneously after the wires have been adjusted. Theinvention also includes improved means for tacilitating the securing ofthe ends or the tubular casings for the wires and also for facilitatingthe insertion and securing or removal of the ends of the wires in theends of the sliding lamp holders.

In the accompanying drawings Figure 1 is a plan, half in section, of thelamp operating device which is mounted on the dashboard. I

Figure 2 is an elevation partly in section of the lamp fitting.

Figure 3 is a cross section of a detail on III-III, Figure 2.

In the form illustrated, which is suitable for example for thesimultaneous operation of two lamps, two push rods 1, each having a bore2 throughout its length large enough to permit of the passage of a wire3 are mounted on the flange 7 of a knob or handle 8, which is preferablyremovable from the flange being, for instance, screwed into the flange.The flange 7 has square holes to receive squared parts 9 ot the pushrods 1 so that the rods cannot rotate. The adjacent ends of the rods 1,which project behind the flange '7 are screw threaded to receive nuts orcaps 10 which draw the rods 1 until collars 11 on them abut against theopposite side of the flange 7 Vhen screwed caps 10 are used they arerecessed inside to allow a short piece of wire to project beyond theends of the rods 1, so that the wires 3 may be gripped by pliers when itis desired to adjust or to tighten the wires after being in use for sometime. The wires 3 are secured to the rods by grub screws 12 which maypass through the collars 11. The rods 1 slide in tubular guides 13 whichmay be in the form of bolts having bores large enough to receive therods 1. The guides 13 are screw threaded externally throughout theirlength, and are passed through the dash board 14: until the heads 15abut against the board or against washers or a metal plate 16 and aresecured by nuts 17 which abut against the opposite side or againstwashers or a single metal plate 18. The ends 19 ot the bolts 1?) remotefrom the dash board lat are slightly tapered and provided with severalsaw cuts 20. .The ends of the tubular casings 21 for the wires 3 areinserted in bores of these ends 19 of the bolts 13 which are thentightened by nuts 22 so that they grip the casings 21 firmly.

The sleeve 23 on each headlight which receives the .slidable lamp holder24 is fitted with a cap 25 having a screw threaded boss 26 which isprovided with saw-cuts and a nut 27 so that it grips the adjacent end ofthe tubular casing 21 firmly.

Each sliding lamp holder 2-1 is provided with an end disc 28 which has aradial slot 29 passing fromthe centre of the disc outwardly to a largeeccentric hole 30. The wire 3 is provided with two collarsSl spacedapart or with a nipple consistingoi" two collars 31 separated by a thinneck 32. \Vhen the wire 3 is to be secured to the lamp holder 24L thenipple is inserted in the large hole until the neck 32 is opposite tothe slot 29. The nipple is then moved laterally to bring the neck intothe central position with the collars 31 one on each side oithe disc 28.The wire 2) can thus be easily inserted or removed by merely removingthe end cap25 of the sleeve 23.

By means of the invention an unskilled person can easily renew or adjustthe wires and easing.

In applying the invention to head lights which have no hole in the rearof the lamp casing 33, a hole is made to receive the lamp operatingfitting. A flanged boss 34 is socured to the casing 33, the boss beingsplit or provided with saw cuts, screw threaded and fitted with a nut 35so that it will grip the sleeve 23 of the fitting.

It will be understood that when the lamps are to be dimmed the knob 8 isgripped by the driver and thrust inwards towards the dashboard, so thatthe push rods 1 thrust the wires 3 along the casings .21 and slide thelamp holders 2% to move the lamps out of the foci of the reflectors. Thelgiarts are shown in this position in the drawings. \Vhen light of fullpower is required the knob 8 is pulled out so that the lamps are againbrought into the l oci of the reflectors. Light of intermediate power isobtainable by shifting the lamps into intermediate po sitions.

Each push rod may be provided with a separate knob if desired so thatthe lamps may be operated independently 1. A means for adjusting thelamp holder of an anti-dazzle headlight, comprising wire, a tubularcasing therefor, a tubular guide receiving the end of the tubularcasing, means cooperating with the guide to clamp the casing in saidguide, a push rod slidably mounted in the guide and having an axial boreextending therethrough in which the wire may be moved withoutinterference, means carried by the push rod to clamp the wire in theaxial bore of the latter, and means remo'vably connected to the end ofthe push rod for operating the latter.

2. A means for adjusting the lamp holder of an anti-dazzle headlight,comprising a wire, a tubular casing therefor, a tubular guide receivingthe end 0-1 the tubular casiiig, means cooperating with the guide toclamp the casing in said guide, a push rod slidably mounted in the guideand having an axial bore extending therethrough in which the wire may bemoved without interference, means carried by the push rod to clamp thewire in the axial bore of the latter, a knob for operating the push rodformed with an opening to receive the end of the push rod, a capthreaded upon the end of the push rod beyond the knob, said cap beinghollow to permit the end of the wire extending through the push rod andinto the cap, whereby on removal of the cap the wire is available formanual adj ustment.

3. A means for axially moving the lamp holder of an anti-dazzleheadlight, comprising a wire and a remotely located push rod having anaxial .bore extending wholly therethrough to receive the wire, anoperating member in which the end .01 the push rod is inserted, andmeans tor securing the push rod to said member to permit the projectionof the end of the wire beyond ztlie connected end of the push rod,whereby said wire is available for manual adjustment withoutdisconnecting .the parts.

at. A means for axially moving the lamp holder .of an anti-dazzleheadlight, comprising a wire and a remotely located pnsh rod having anaxial bore extending wholly therethrough :to receive the wire, anoperating member in which :the end of the push rod is inserted, meansfor securing the push rod to said member {to permit thev projection ofthe end 01 the wire beyond the connected end oi the push rod, wherebysaid wire is available for manual adjustment without discomiecting theparts,- and ,means carried by the push rod and treel-y. accessible whenthe pushrod is :in operating position for clamping the wire in the boreof the push rod.

5. A device for simultaneously operating slidable lamp holders of twoanti-dazzle head lights, comprising atwo push rods, two tubular guidesior said rods, means for supporting said guides, a knob-having a flange,provided with square :holes to receive the squared ends of said rods,hollow screwed caps for securing said ends to said flange, each of saidrods having a bore throughout its length .to.-allow lamp operating wireto pass therethrough and :to project beyond said flange and inside saidcaps and a grub screw for securing each wire :in its rod, substantiallyas and for the purpose hereinbetore .set forth.

In testimony whereof I have signed my name to this specification.

FREDERICK GEORGE PIPER.

